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If the Laschamps geomagnetic excursion happened today, aviation radiation exposure would be radically altered

Earth's magnetic field acts as a vital shield against radiation arriving from space, but it is not constant. A new international study has examined how a reduction of the magnetic field similar to the Laschamps excursion would affect aviation on routes such as Helsinki-Dubai and Helsinki-New York if it occurred today. The magnetic field protects Earth from harmful cosmic radiation and solar eruptions. However, its strength slowly varies over tim…
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Signs of the Times broke the news in on Tuesday, March 31, 2026.
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